Index: Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/SectionResultRows/GrassCoverSlipOffOutwardsSectionResultRow.cs
===================================================================
diff -u -r4dbb8c9e658bb02d5f1ff5aaf5dc3b45fc1c47ac -r6694f68a2eff14522383602cb9d4de45bd607856
--- Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/SectionResultRows/GrassCoverSlipOffOutwardsSectionResultRow.cs	(.../GrassCoverSlipOffOutwardsSectionResultRow.cs)	(revision 4dbb8c9e658bb02d5f1ff5aaf5dc3b45fc1c47ac)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Forms/Views/SectionResultRows/GrassCoverSlipOffOutwardsSectionResultRow.cs	(.../GrassCoverSlipOffOutwardsSectionResultRow.cs)	(revision 6694f68a2eff14522383602cb9d4de45bd607856)
@@ -224,6 +224,7 @@
         public override void Update()
         {
             UpdateDerivedData();
+            UpdateColumnStateDefinitionStates();
         }
 
         private void CreateColumnStateDefinitions()
@@ -320,6 +321,32 @@
         }
 
         /// <summary>
+        /// Updates the column state definitions.
+        /// </summary>
+        /// <exception cref="NotSupportedException">Thrown when <see cref="FailureMechanismSectionAssemblyCategoryGroup"/>
+        /// is a valid value, but unsupported.</exception>
+        private void UpdateColumnStateDefinitionStates()
+        {
+            bool simpleAssessmentSufficient = FailureMechanismSectionResultRowHelper.SimpleAssessmentIsSufficient(SimpleAssessmentResult);
+
+            FailureMechanismSectionResultRowHelper.SetColumnState(ColumnStateDefinitions[simpleAssessmentResultIndex], UseManualAssemblyCategoryGroup);
+            FailureMechanismSectionResultRowHelper.SetColumnState(ColumnStateDefinitions[detailedAssessmentResultIndex],
+                                                                  simpleAssessmentSufficient || UseManualAssemblyCategoryGroup);
+            FailureMechanismSectionResultRowHelper.SetColumnState(ColumnStateDefinitions[tailorMadeAssessmentResultIndex],
+                                                                  simpleAssessmentSufficient || UseManualAssemblyCategoryGroup);
+
+            if (UseManualAssemblyCategoryGroup)
+            {
+                FailureMechanismSectionResultRowHelper.DisableColumn(ColumnStateDefinitions[simpleAssemblyCategoryGroupIndex]);
+                FailureMechanismSectionResultRowHelper.DisableColumn(ColumnStateDefinitions[detailedAssemblyCategoryGroupIndex]);
+                FailureMechanismSectionResultRowHelper.DisableColumn(ColumnStateDefinitions[tailorMadeAssemblyCategoryGroupIndex]);
+                FailureMechanismSectionResultRowHelper.DisableColumn(ColumnStateDefinitions[combinedAssemblyCategoryGroupIndex]);
+            }
+
+            FailureMechanismSectionResultRowHelper.SetColumnState(ColumnStateDefinitions[manualAssemblyCategoryGroupIndex], !UseManualAssemblyCategoryGroup);
+        }
+
+        /// <summary>
         /// Class holding the various construction parameters for <see cref="GrassCoverSlipOffOutwardsSectionResultRow"/>.
         /// </summary>
         public class ConstructionProperties
Index: Ringtoets/Integration/test/Ringtoets.Integration.Forms.Test/Views/SectionResultRows/GrassCoverSlipOffOutwardsSectionResultRowTest.cs
===================================================================
diff -u -r4dbb8c9e658bb02d5f1ff5aaf5dc3b45fc1c47ac -r6694f68a2eff14522383602cb9d4de45bd607856
--- Ringtoets/Integration/test/Ringtoets.Integration.Forms.Test/Views/SectionResultRows/GrassCoverSlipOffOutwardsSectionResultRowTest.cs	(.../GrassCoverSlipOffOutwardsSectionResultRowTest.cs)	(revision 4dbb8c9e658bb02d5f1ff5aaf5dc3b45fc1c47ac)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Forms.Test/Views/SectionResultRows/GrassCoverSlipOffOutwardsSectionResultRowTest.cs	(.../GrassCoverSlipOffOutwardsSectionResultRowTest.cs)	(revision 6694f68a2eff14522383602cb9d4de45bd607856)
@@ -314,6 +314,84 @@
             }
         }
 
+        #region Column States
+
+        [Test]
+        [TestCase(SimpleAssessmentResultType.None, true)]
+        [TestCase(SimpleAssessmentResultType.AssessFurther, true)]
+        [TestCase(SimpleAssessmentResultType.NotApplicable, false)]
+        [TestCase(SimpleAssessmentResultType.ProbabilityNegligible, false)]
+        public void Constructor_WithSimpleAssessmentResultSet_ExpectedColumnStates(SimpleAssessmentResultType simpleAssessmentResult,
+                                                                                   bool cellsEnabled)
+        {
+            // Setup
+            FailureMechanismSection section = FailureMechanismSectionTestFactory.CreateFailureMechanismSection();
+            var result = new GrassCoverSlipOffOutwardsFailureMechanismSectionResult(section)
+            {
+                SimpleAssessmentResult = simpleAssessmentResult
+            };
+
+            using (new AssemblyToolCalculatorFactoryConfig())
+            {
+                // Call
+                var row = new GrassCoverSlipOffOutwardsSectionResultRow(result, ConstructionProperties);
+
+                // Assert
+                IDictionary<int, DataGridViewColumnStateDefinition> columnStateDefinitions = row.ColumnStateDefinitions;
+
+                FailureMechanismSectionResultRowTestHelper.AssertColumnState(columnStateDefinitions[ConstructionProperties.DetailedAssessmentResultIndex],
+                                                                             cellsEnabled);
+                FailureMechanismSectionResultRowTestHelper.AssertColumnState(columnStateDefinitions[ConstructionProperties.TailorMadeAssessmentResultIndex],
+                                                                             cellsEnabled);
+            }
+        }
+
+        [Test]
+        [TestCase(true)]
+        [TestCase(false)]
+        public void Constructor_WithUseManualAssemblyCategoryGroupSet_ExpectedColumnStates(bool useManualAssemblyCategoryGroup)
+        {
+            // Setup
+            FailureMechanismSection section = FailureMechanismSectionTestFactory.CreateFailureMechanismSection();
+            var result = new GrassCoverSlipOffOutwardsFailureMechanismSectionResult(section)
+            {
+                UseManualAssemblyCategoryGroup = useManualAssemblyCategoryGroup
+            };
+
+            using (new AssemblyToolCalculatorFactoryConfig())
+            {
+                // Call
+                var row = new GrassCoverSlipOffOutwardsSectionResultRow(result, ConstructionProperties);
+
+                // Assert
+                IDictionary<int, DataGridViewColumnStateDefinition> columnStateDefinitions = row.ColumnStateDefinitions;
+
+                FailureMechanismSectionResultRowTestHelper.AssertColumnState(columnStateDefinitions[ConstructionProperties.SimpleAssessmentResultIndex],
+                                                                             !useManualAssemblyCategoryGroup);
+                FailureMechanismSectionResultRowTestHelper.AssertColumnState(columnStateDefinitions[ConstructionProperties.DetailedAssessmentResultIndex],
+                                                                             !useManualAssemblyCategoryGroup);
+                FailureMechanismSectionResultRowTestHelper.AssertColumnState(columnStateDefinitions[ConstructionProperties.TailorMadeAssessmentResultIndex],
+                                                                             !useManualAssemblyCategoryGroup);
+
+                if (useManualAssemblyCategoryGroup)
+                {
+                    FailureMechanismSectionResultRowTestHelper.AssertColumnStateIsDisabled(
+                        columnStateDefinitions[ConstructionProperties.SimpleAssemblyCategoryGroupIndex]);
+                    FailureMechanismSectionResultRowTestHelper.AssertColumnStateIsDisabled(
+                        columnStateDefinitions[ConstructionProperties.DetailedAssemblyCategoryGroupIndex]);
+                    FailureMechanismSectionResultRowTestHelper.AssertColumnStateIsDisabled(
+                        columnStateDefinitions[ConstructionProperties.TailorMadeAssemblyCategoryGroupIndex]);
+                    FailureMechanismSectionResultRowTestHelper.AssertColumnStateIsDisabled(
+                        columnStateDefinitions[ConstructionProperties.CombinedAssemblyCategoryGroupIndex]);
+                }
+
+                FailureMechanismSectionResultRowTestHelper.AssertColumnState(columnStateDefinitions[ConstructionProperties.ManualAssemblyCategoryGroupIndex],
+                                                                             useManualAssemblyCategoryGroup);
+            }
+        }
+
+        #endregion
+
         #region Registration
 
         [Test]